Home / 2,939.50-4,056.92-1,820.89

Finding the Fourth Proportional to 2,939.50, 4,056.92 and 1,820.89

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Solution

The fourth proportional to 2,939.50, 4,056.92 and 1,820.89 is: 2,513.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.50 : 4,056.92 = 1,820.89 : x
  2. Step 2: Convert to fraction form
    2,939.50/4,056.92 = 1,820.89/x
  3. Step 3: Cross multiply
    2,939.50x = 4,056.92 × 1,820.89
  4. Step 4: Simplify right side
    2,939.50x = 7,387,205.06
  5. Step 5: Solve for x
    x = 7,387,205.06/2,939.50
  6. Step 6: Final answer
    x = 2,513.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.